feat: Enhance status bar to display multi-line commit messages with resizable height

gtm

@@ -931,12 +931,13 @@ def draw_status_bars(stdscr, state):
     # --- Second status bar (bottom) ---
     # Draw the commit details in the second status bar
     
-    # Fill the bottom status bar with spaces using reverse video
+    # Fill all status bar lines with spaces using reverse video
-    for x in range(state.width - 1):
+    for y in range(state.status_bar_height):
-        try:
+        for x in range(state.width - 1):
-            stdscr.addch(state.height - 1, x, ' ', curses.A_REVERSE)
+            try:
-        except curses.error:
+                stdscr.addch(state.height - state.status_bar_height + y, x, ' ', curses.A_REVERSE)
-            pass
+            except curses.error:
+                pass
     
     # Draw the commit hash and message on the left
     if state.commit_hash:
@@ -953,32 +954,45 @@ def draw_status_bars(stdscr, state):
         message_lines = commit_message.splitlines()
         if not message_lines:
             message_lines = [""]
-            
-        # Show the first line in the status bar
-        display_message = message_lines[0]
         
-        # Truncate message if needed
+        # Calculate how many message lines we can display
-        if len(display_message) > available_width:
+        # We need at least one line for the status bar with hash and author
-            display_message = display_message[:available_width-3] + "..."
+        available_message_lines = state.status_bar_height - 1
         
         try:
-            # Draw the commit hash with bold
+            # Draw the commit hash with bold on the first line of the status bar
-            stdscr.addstr(state.height - 1, 0, commit_info, curses.A_REVERSE | curses.A_BOLD)
+            stdscr.addstr(state.height - state.status_bar_height + 1, 0, commit_info, curses.A_REVERSE | curses.A_BOLD)
             
-            # Draw the commit message
+            # Draw the author and branch on the right of the first line
-            stdscr.addstr(state.height - 1, len(commit_info), display_message, curses.A_REVERSE)
-            
-            # Draw the author and branch on the right
             right_x = state.width - len(author_branch_info)
             if right_x >= 0:
-                stdscr.addstr(state.height - 1, right_x, author_branch_info, curses.A_REVERSE)
+                stdscr.addstr(state.height - state.status_bar_height + 1, right_x, author_branch_info, curses.A_REVERSE)
+            
+            # Draw the first line of the commit message on the same line as the hash
+            first_line = message_lines[0]
+            if len(first_line) > available_width:
+                first_line = first_line[:available_width-3] + "..."
+            stdscr.addstr(state.height - state.status_bar_height + 1, len(commit_info), first_line, curses.A_REVERSE)
+            
+            # Draw additional lines of the commit message if we have space
+            for i in range(1, min(available_message_lines, len(message_lines))):
+                line = message_lines[i]
+                # For continuation lines, we have more space since we don't need to show the hash
+                line_available_width = state.width - 4  # Leave some margin
+                if len(line) > line_available_width:
+                    line = line[:line_available_width-3] + "..."
+                # Draw the line with some indentation
+                stdscr.addstr(state.height - state.status_bar_height + 1 + i, 4, line, curses.A_REVERSE)
         except curses.error:
             pass
     
     # Draw a handle for resizing the status bar
     try:
         handle_char = "≡" if state.dragging_status_bar else "="
-        stdscr.addstr(status_bar_start, state.width // 2 - 1, handle_char * 3, curses.A_REVERSE | curses.A_BOLD)
+        handle_text = handle_char * 3
+        if state.status_bar_height > 2:
+            handle_text += f" ({state.status_bar_height} lines)"
+        stdscr.addstr(status_bar_start, state.width // 2 - len(handle_text) // 2, handle_text, curses.A_REVERSE | curses.A_BOLD)
     except curses.error:
         pass